#31328F#31328F

#31328F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.9% C 0.150 H 276.1°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#31328F
RGB	rgb(49, 50, 143)
HSL	hsl(239, 49%, 38%)
HSV	hsv(239, 66%, 56%)
CMYK	cmyk(65.7%, 65%, 0%, 43.9%)
CIE-LAB	lab(26.50, 29.98, -51.67)
CIE-LCH	lch(26.50, 59.73, 300.12°)
OKLab	oklab(37.86% 0.0158 -0.1489)
OKLCH	oklch(37.86% 0.15 276.1)
XYZ	xyz(7.3635, 4.9167, 26.5423)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31328F #8F8E31

analogous

#31618F #31328F #5F318F

triadic

#31328F #8F3132 #328F31

tetradic

#31328F #8F3161 #8F8E31 #318F5F

square

#31328F #8F3161 #8F8E31 #318F5F

split-complementary

#31328F #8F5F31 #618F31

monochromatic

#121234 #212261 #31328F #4142BD #6D6ECD

Accessibility & contrast

On white

10.59

#31328F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#31328F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31328F

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31328F	#FFFFFF	#000000	##FFFFFF
##31328F	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#003B8D

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #31328f;
/* rgb */ color: rgb(49, 50, 143);
/* oklch */ color: oklch(37.9% 0.150 276.1);

Tailwind

colors: {
  custom: {
    50: '#756ab1',
    500: '#31328f',
    950: '#000000',
  },
}

SCSS

$custom: #31328f;
$custom-light: #756ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#31328f",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 143
  },
  "hsl": {
    "h": 239.362,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.37862,
    "c": 0.14976,
    "h": 276.1
  },
  "luminance": 0.04917
}

Semantic roles & 50–950 ramp

primary

#31328F

secondary

#B5B467

accent

#D74FD9

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #31328F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →